National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Grand Marais, The Bay of Grand Marais (KGNA)

Lat: 47.75°NLon: 90.34°WElev: 610ft.

53°F

12°C

Humidity 86%
Wind Speed N 3 mph
Barometer 30.05 in (1017.3 mb)
Dewpoint 49°F (9°C)
Visibility NA
Last update 28 Aug 11:56 pm CDT
Extended Forecast for

Grand Marais MN

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 55. North wind around 5 mph becoming calm.

    Low: 55 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers, mainly after 2pm. Mostly cloudy, with a high near 62. Calm wind becoming east around 5 mph in the afternoon.

    High: 62 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 10 percent chance of showers before 10pm. Patchy fog between 3am and 4am. Otherwise, mostly cloudy, with a low around 55. Calm wind becoming northeast around 5 mph.

    Low: 55 °F

    Slight Chance
    Showers then
    Patchy Fog

  • Sunday

    Sunday: A 20 percent chance of showers after 1pm. Cloudy, with a high near 63. East wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 63 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers, with thunderstorms also possible after 4am. Cloudy, with a low around 55. Breezy, with an east wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

    Low: 55 °F

    Chance
    Showers and
    Breezy

  • Monday

    Monday: A chance of showers and thunderstorms. Cloudy, with a high near 67. East wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 40%.

    High: 67 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers before 1am. Mostly cloudy, with a low around 59. Northeast wind around 5 mph becoming west after midnight.

    Low: 59 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 74. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 74 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 58. Northwest wind around 5 mph.

    Low: 58 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 55. North wind around 5 mph becoming calm.
Saturday
A 30 percent chance of showers, mainly after 2pm. Mostly cloudy, with a high near 62. Calm wind becoming east around 5 mph in the afternoon.
Saturday Night
A 10 percent chance of showers before 10pm. Patchy fog between 3am and 4am. Otherwise, mostly cloudy, with a low around 55. Calm wind becoming northeast around 5 mph.
Sunday
A 20 percent chance of showers after 1pm. Cloudy, with a high near 63. East wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
A chance of showers, with thunderstorms also possible after 4am. Cloudy, with a low around 55. Breezy, with an east wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Monday
A chance of showers and thunderstorms. Cloudy, with a high near 67. East wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 40%.
Monday Night
A slight chance of showers before 1am. Mostly cloudy, with a low around 59. Northeast wind around 5 mph becoming west after midnight.
Tuesday
Mostly sunny, with a high near 74. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 58. Northwest wind around 5 mph.
Wednesday
Partly sunny, with a high near 71. Northwest wind around 5 mph becoming southwest in the afternoon.
Wednesday Night
Partly cloudy, with a low around 56. Calm wind becoming north around 5 mph.
Thursday
A slight chance of showers. Partly sunny, with a high near 68. Northeast wind 5 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 15 mph.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 56. Northeast wind around 5 mph.
Friday
A slight chance of showers. Partly sunny, with a high near 69. East wind 5 to 10 mph, with gusts as high as 15 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Marais MN
 47.74°N 90.33°W
Last Update:
12:01 am CDT Aug 29, 2026
Forecast Valid:
12am CDT Aug 29, 2026-6pm CDT Sep 4, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation